
Custom Biologics
About CRO
Core Services
Custom Biologics specializes in GLP-compliant bioanalytical services for biologics, vaccines, and gene therapies across preclinical and clinical development stages. Services include:
- Potency & Functional Assays: Cell-based assays, ELISA, ELISpot, ligand-binding assays
- Genomics & Molecular Testing: ddPCR, qPCR, RT-qPCR, DASL-Rapid™ for rapid pathogen detection
- Analytical Testing: Western blot, BLI, SDS-PAGE, mass spectrometry
- GMP Testing: Lot release, stability, identity/purity testing
- Regulatory Support: Assay development, validation, and tech transfer aligned with FDA 21 CFR Part 58 and Part 11
Specialization Areas
- Gene Therapy: AAV, lentivirus, oncolytic virus characterization
- Immunogenicity & Pharmacokinetics: Assessments for biologics and biosimilars
- Cell & Gene Therapies: Support from discovery through clinical trials
- Regulatory Compliance: Health Canada Drug Establishment License; ISO 13485 compliant
Facility & Quality Assurance
Custom Biologics operates an 8,000 sq. ft. GLP-compliant facility at 115 Skyway Ave, Toronto. Their quality system follows FDA and EMEA GLP guidelines to ensure data integrity and regulatory compliance.
Leadership Team
- Dan Mamelak, PhD – Founder & President
- Kalhari Silva, PhD – Head of Scientific Research & Innovation
- Carolyn Modi – Quality Assurance Manager
Global Reach & Clientele
With over 20 years of experience, Custom Biologics has supported more than 200 preclinical and clinical studies for over 125 clients worldwide, including major pharmaceutical and biotech companies.
Contact Information
Phone: +1 (416) 479-3773
Email: info@custombiologics.com
Website: https://www.custombiologics.com/
Social Media
LinkedIn: https://www.linkedin.com/company/custombiologics
Twitter: https://x.com/custmbio





